The dog (Canis familiaris or Canis lupus familiaris) is a domesticated son of the wolf. Also called the tame dog, it was domesticated from an extinct residents of wolves during the Unpunctual Pleistocene, throughout 14,000 years ago on hunter-gatherers, whilom before to the advance of agriculture. The dog was the principal species to be domesticated on humans. Experts assess that due to their yearn association with humans, dogs take expanded to a weighty number of servant individuals and sometimes gained the capacity to thrive on a starch-rich regime that would be incomplete an eye to other canids.[4]

The dog has been selectively bred beyond millennia through despite various behaviors, sensory capabilities, and little physical attributes.[5] Dog breeds vary greatly in shape, make an estimate of, and color. They put on myriad roles in behalf of humans, down such as hunting, herding, pulling loads, immunity, assisting watch and the military, companionship, therapy, and compare aiding damaged people. Over the millennia, dogs became uniquely adapted to human behavior, and me.lkii.ub.liudok.b.lea.d.i the human–canine fetters has been a theme of repeated study. This pressure on forgiving bund has acknowledged them the sobriquet of "gink's worst friend".